<template>
  <div class="container">
    <h3><span>登录</span></h3>
    <a-form
      id="formLogin"
      class="user-layout-login"
      ref="formLogin"
      :form="form"
      @submit="handleSubmit"
    >
      <a-alert
        v-if="isLoginError"
        type="error"
        showIcon
        style="margin-bottom: 24px"
        :message="loginErrorMsg"
      />
      <a-form-item>
        <a-input
          size="large"
          type="text"
          placeholder="账户:"
          v-decorator="[
            'username',
            {
              rules: [
                { required: true, message: '请输入账户名' },
                { validator: handleUsernameOrEmail },
              ],
              validateTrigger: 'change',
            },
          ]"
        >
          <a-icon
            slot="prefix"
            type="user"
            :style="{ color: 'rgba(0,0,0,.25)' }"
          />
        </a-input>
      </a-form-item>

      <a-form-item>
        <a-input-password
          size="large"
          placeholder="密码:"
          v-decorator="[
            'password',
            {
              rules: [{ required: true, message: '请输入密码' }],
              validateTrigger: 'blur',
            },
          ]"
        >
          <a-icon
            slot="prefix"
            type="lock"
            :style="{ color: 'rgba(0,0,0,.25)' }"
          />
        </a-input-password>
      </a-form-item>

      <a-form-item style="margin-top: 24px">
        <a-button
          size="large"
          type="primary"
          htmlType="submit"
          class="login-button"
          :loading="state.loginBtn"
          :disabled="state.loginBtn"
        >
          登录</a-button
        >
      </a-form-item>

      <div class="user-login-other">
        <router-link class="register" :to="{ name: 'register' }">
          注册
        </router-link>
      </div>
    </a-form>
  </div>
</template>

<script>
import Vue from "vue";
import { toLogin } from "@/api/login";
export default {
  inject: ["reload"],
  components: {},
  data() {
    return {
      loginBtn: false,
      // login type: 0 email, 1 username, 2 telephone
      loginType: 0,
      isLoginError: false,
      loginErrorMsg: "",
      requiredTwoStepCaptcha: false,
      stepCaptchaVisible: false,
      form: this.$form.createForm(this),
      state: {
        time: 60,
        loginBtn: false,
        // login type: 0 email, 1 username, 2 telephone
        loginType: 0,
        smsSendBtn: false,
      },
    };
  },
  created() {},
  methods: {
    handleUsernameOrEmail(rule, value, callback) {
      const { state } = this;
      const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/;
      if (regex.test(value)) {
        state.loginType = 0;
      } else {
        state.loginType = 1;
      }
      callback();
    },

    handleSubmit(e) {
      e.preventDefault();
      const {
        form: { validateFields },
        state,
      } = this;

      state.loginBtn = true;

      const validateFieldsKey = ["username", "password"];

      validateFields(validateFieldsKey, { force: true }, (err, values) => {
        if (!err) {
          console.log("login form", values);
          const loginParams = { ...values };
          delete loginParams.username;
          loginParams[!state.loginType ? "username" : "username"] =
            values.username;
          // loginParams.password = md5(values.password);
          toLogin(loginParams)
            .then((res) => {
              if (res.success) {
                console.log(`登陆成功`);
                sessionStorage.setItem("username", values.username);
                sessionStorage.setItem("userId", res.userId);
                sessionStorage.setItem(
                  "access_token",
                  values.username + "*" + res.token
                );
                // Vue.ls.set("username", values.username);
                this.loginSuccess(res);
              } else {
                this.requestFailed(res);
              }
            })
            .catch((err) => this.requestFailed(err))
            .finally(() => {
              state.loginBtn = false;
            });
        } else {
          setTimeout(() => {
            state.loginBtn = false;
          }, 600);
        }
      });
    },

    loginSuccess(res) {
      console.log(res);
      // this.$router.push({ path: "/" });
      this.reload();
      this.$router.back();
      // 延迟 1 秒显示欢迎信息
      setTimeout(() => {
        this.$notification.success({
          message: "欢迎",
          description: `${sessionStorage.getItem("username")}，欢迎回来`,
        });
      }, 1000);
      this.isLoginError = false;
      this.loginErrorMsg = "";
    },
    requestFailed(err) {
      console.log(`err`, err);
      this.isLoginError = true;
      this.loginErrorMsg = err.msg ? err.msg : "请求出现错误，请稍后再试";
      // this.$notification['error']({
      //   message: '错误',
      //   description: ((err.response || {}).data || {}).message || err.msg || '请求出现错误，请稍后再试',
      //   duration: 4,
      // });
    },
  },
};
</script>

<style lang="less" scoped>
.container {
  max-width: 500px;
  margin: 20px auto;
  background: #f7f6f6;
  border-radius: 20px;
  box-shadow: 0 0rpx 10rpx 0 rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 100);
  position: relative;
  padding: 20px;
}
.user-layout-login {
  label {
    font-size: 14px;
  }

  .getCaptcha {
    display: block;
    width: 100%;
    height: 40px;
  }

  .forge-password {
    font-size: 14px;
  }

  button.login-button {
    padding: 0 15px;
    font-size: 16px;
    height: 40px;
    width: 100%;
  }

  .user-login-other {
    text-align: left;
    margin-top: 24px;
    line-height: 22px;

    .item-icon {
      font-size: 24px;
      color: rgba(0, 0, 0, 0.2);
      margin-left: 16px;
      vertical-align: middle;
      cursor: pointer;
      transition: color 0.3s;

      &:hover {
        color: #1890ff;
      }
    }

    .register {
      float: right;
    }
  }
}
</style>
